Keeping a window a certain % from 0,0 of stage

Hey guys,
I’m working on a full screen flash site with a floating content window and a menu bar. You can see what I have so far at
http://ostari.com/ronnie/point1

Now you notice when you resize the window just stays in the top left. That is ok however what I would like to see is the window float a certain percent from 0,0 of the stage. I say this because If the users resolution is big, the window seems kind of far from the menu, but say they have 1024x768 they are relatively close. Maybe I am going about this the wrong way, but basically I just would like to see the window and menu bar closer together the bigger resolution they have. Thanks.
-Ronnie